The latest in a series of multifamily developments near the MBTA’s Forest Hills station would add 260 apartments and townhouses to a 2.1-acre site at Washington Street and Arborway.

Criterion Development Partners plans three wood-framed buildings built atop a one-story garage containing 126 parking spaces, according to a letter of intent filed last week with the Boston Redevelopment Authority. The land is currently occupied by approximately 300 surface parking spaces.

Without specifying a number, Criterion Principal John Englert wrote that the affordable housing allocation on site would exceed the city’s recently-updated inclusionary development policy. The policy requires developers to reserve at least 13 percent of all units in a multifamily project as affordable housing or pay into a fund to support the generation of affordable housing in the surrounding neighborhood. In Jamaica Plain, the fee is $300,000 per unit.

The project also would include 5,500 square feet of ground-level retail and/or restaurant space on Washington Street and the Arborway and 10 surface parking spaces. The developers will seek a minimum of LEED Silver certification.

To maximize the project’s transit-oriented goals, Zipcar spaces and bike-sharing facilities would be provided for residents and area commuters.